Kadioglu, Onat
Cao, Jingming
Kosyakova, Nadezda
Mrasek, Kristin
Liehr, Thomas
Efferth, Thomas
Article History
Received: 20 May 2016
Accepted: 17 October 2016
First Online: 8 November 2016
Competing interests
: The authors declare no competing financial interests.